Jung-Su Lee

Title: Innovations of Jung-Su Lee in Digital Image Watermarking

Introduction

Jung-Su Lee is a notable inventor based in Seoul, South Korea. He has made significant contributions to the field of digital image processing, particularly in watermarking technology. His innovative approach has led to the development of a unique method for embedding watermarks in digital images, enhancing their security and authenticity.

Latest Patents

Jung-Su Lee holds a patent for a "Digital image watermarking apparatus and method." This invention relates to a digital image watermarking apparatus and method that transforms the luminance component of a digital image into coefficients of a frequency domain. A watermark is generated by encrypting a user key and creating a pseudo-random number from the encrypted user key. The method involves replacing a coefficient generated from a coefficient of a first frequency area with a coefficient of a second frequency area, thereby embedding the watermark into the digital image. The embedded watermark can be extracted at an authenticating apparatus, allowing for the authentication of the digital image by finding the correlation between the extracted watermark and the watermark used for authentication.

Career Highlights

Jung-Su Lee is currently associated with Markany Inc., a company known for its advancements in digital rights management and security solutions. His work at Markany Inc. has allowed him to further develop his expertise in digital watermarking and image processing technologies.

Collaborations

Jung-Su Lee has collaborated with Jong-Uk Choi, a fellow innovator in the field. Their partnership has contributed to the advancement of watermarking technologies and has fostered innovation within their projects.

Conclusion

Jung-Su Lee's contributions to digital image watermarking represent a significant advancement in the field of digital security. His innovative methods enhance the protection of digital images, ensuring their authenticity and integrity.